US4344603A - Electromagnetic valve apparatus with a hand-operated transfer device - Google Patents

Electromagnetic valve apparatus with a hand-operated transfer device Download PDF

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Publication number
US4344603A
US4344603A US06/179,642 US17964280A US4344603A US 4344603 A US4344603 A US 4344603A US 17964280 A US17964280 A US 17964280A US 4344603 A US4344603 A US 4344603A
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United States
Prior art keywords
spring member
annular element
electromagnetic valve
iron core
flat spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US06/179,642
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English (en)
Inventor
Kazuhiro Hozumi
Shigeo Tamaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kuroda Precision Industries Ltd
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Kuroda Precision Industries Ltd
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Filing date
Publication date
Application filed by Kuroda Precision Industries Ltd filed Critical Kuroda Precision Industries Ltd
Assigned to KURODA PRECISION INDUSTRIES LTD., reassignment KURODA PRECISION INDUSTRIES LTD., ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: HOZUMI KAZUHIRO, TAMAKI SHIGEO
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Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0644—One-way valve
    • F16K31/0651—One-way valve the fluid passing through the solenoid coil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0603—Multiple-way valves
    • F16K31/0606—Multiple-way valves fluid passing through the solenoid coil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0603—Multiple-way valves
    • F16K31/0624—Lift valves
    • F16K31/0627—Lift valves with movable valve member positioned between seats
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0644—One-way valve
    • F16K31/0655—Lift valves
    • F16K31/0658—Armature and valve member being one single element
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86622—Motor-operated

Definitions

  • the invention relates to an improvement in electromagnetic valve apparatus with a hand-operated transfer device.
  • the apparatus uses an iron core that is manually movable to open and shut fluid passages.
  • the present invention is an improvement of the hand-operated transfer device which comprises a bendable spring device with an inner and outer duplex member.
  • a conventional solenoid valve or an electromagnetic valve comprises generally a valve body and an electromagnetic element.
  • the valve body has a valve chamber at an upper portion thereof, a fluid passage for supplying fluid to the chamber and another passage for discharge of the fluid from the valve chamber.
  • a valve seat is fitted on an opening portion of the fluid passage for supplying fluid.
  • the electromagnetic element of the valve comprises an electromagnetic coil, a fixed iron core, a movable iron core and a housing or cover.
  • a fluid passage is provided in the fixed iron core.
  • the movable iron core is downwardly pressed by a spring means and the lower surface of the core contacts with the upper surface of the valve seat and usually maintains closing condition thereof.
  • the conventional solenoid valve which includes the above stated elements will not appropriately operate when the electric current is interrupted. Therefore, some improvements are provided to the conventional electromagnetic valve, as shown in the Japanese Utility Model Application Publication Nos. 2607/1969, 2608/1969 and 2609/1969, in which a hand-operated transfer device is used to lift up the movable iron core for opening of the valve by means of respectively differently shaped cam means.
  • these devices disclosed in the above stated prior art are of relatively large size and have complicated constructions, since the hand-operated member which operates the movable iron core extends horizontally against the axis line direction of the movable iron core.
  • the present invention of an electromagnetic valve or solenoid valve which is provided with a hand-operated transfer device that directly opens or closes the fluid passage by means of the movable iron core, has a feature of operating a movable iron core by hand-operated exchanger or transfer device which includes a flat spring member.
  • the flat spring means of the hand-operated transfer device comprises a large diameter annular element and a small diameter annular element which is concentrically positioned within the large diameter annular element, and an extended element connected with both annular elements at one portion and extending from the outer side of the large diameter annular element.
  • the flat spring member is provided within the electromagnetic element and a valve chamber which is sealed by an elastic annular sealing ring by which the outer large diameter annular element is fixed.
  • An outer end of the extended element of the flat spring member is contacted by an end of an operative member which is provided on the side of the cover of the electromagnetic means or on the side of the valve body and moves parallel to the direction of movement of the movable iron core. Movement of the operative member moves the inner small diameter annular element which pushes the movable iron core in accordance with the elastic bent character of the extended element.
  • the outer large diameter annular element which is continued from the extended element and is fixed by the sealing member and, operates as a fulcrum.
  • a principal object of the present invention is to provide an electromagnetic valve that includes a hand-operated transfer device which operates vertically along the movable iron core.
  • Another object of the present invention is to provide an electromagnetic valve which includes a compact and simple hand-operated transfer device.
  • FIG. 1 is a front elevational view, partially in section, of the first embodiment of the present invention
  • FIG. 2 is an exploded perspective showing the flat spring member and a pair of elastic annular sealing members, which are shown partially in section,
  • FIG. 3 is a perspective view of the flat spring member
  • FIG. 4 is a view, similar to FIG. 1, showing the condition in which the movable iron core is lifted up by the flat spring device,
  • FIG. 5 is a cross sectional view of a second embodiment of assembled sealing rings, showing the flat spring member between the both rings.
  • FIG. 6 is an oblique sectional view of an another embodiment of the flat spring member
  • FIG. 7 is a view, partially in section, showing the second embodiment of the operative member connected to the outer end of the extended member.
  • FIG. 1 shows the improved electromagnetic valve or solenoid valve of the present invention
  • the valve apparatus is put between the base and top plate members 11b and 11a, respectively.
  • the improvement is applied to a conventional electromagnetic valve which comprises a valve body 10 and an electromagnetic element 20.
  • the valve body has a valve chamber 30 at the upper portion thereof, a fluid inflow passage 40 for supply of the fluid and an outlet passage 50, namely a fluid discharge passage, for discharge of the fluid.
  • a valve seat 60 is fitted on the opening of the fluid passage 40.
  • the electromagnetic element 20 comprises an electromagnetic coil 70, a fixed iron core 80, a movable iron core 90 and a housing or cover 100, a fluid passage 110 for discharge of the fluid is provided in the fixed iron core 80.
  • a numeral 12 in the drawings shows a fluid pipe which connects with the fluid passage 40.
  • the movable iron core 90 is downwardly pressed by spring means 120 and the lower surface of the core 90 contacts with the upper surface of the valve seat 60.
  • FIG. 1 a condition is shown in which the valve closes the opening of the fluid passage 40.
  • the condition of FIG. 1 is that the fluid passage 40 is closed and the fluid passage 50 and the fluid passage 110 are communicated with each other.
  • the movable iron core 90 is upwardly attracted by the electromagnetic induction and the movable iron core leaves from the valve seat 60. Therefore, the fluid passage 110 for discharge of the fluid is closed by the movable iron core 90, and the both passages 40 and 50 communicate with each other, accordingly the fluid is supplied from the passage 40 to the passage 50.
  • the present invention has a further device for a hand-operated exchanger or transfer device in addition to the above stated electromagnetic valve apparatus.
  • the hand-operated transfer device comprises a flat spring member 130 provided in the valve chamber 30, a pair of elastic sealing rings 140 and 150, and an operative member 160 that extends through cover 100 of the electromagnetic element.
  • the flat spring member 130 comprises a large diameter outer annular element 130a, namely an annular section, an extended element having projections 130b and 130c which respectively and crossingly project to both inner and outer sides from the outer annular portion 130a, and a small diameter inner annular element 130d which is concentrically positioned within the outer element 130a and is connected to the inner end of said projection 130b, and these elements are able to be formed as one body.
  • the flat spring member 130 is able to be assembled from a separately formed outer annular element having a cutting portion thereon, and a separately formed inner annular element which has a projection which is pivotably engaged in the cutting out of the outer annular element and is springily held therein, however this modification is not shown in the drawings.
  • Both elastic annular sealing members 140 and 150 are formed as semicircular sections, as shown in section in FIG. 2.
  • the section of the sealing member is shown for explanation of the shape of the cross sectional view thereof.
  • the flat spring member 130 is inserted between the sealing rings 140 and 150, namely, one of the sealing rings 140 and 150 is put on the upper surface of the outer annulation 130a and the other sealing ring is put under the lower surface of the outer annulation, and these rings are assembled and used as shown in FIG. 1. Also these elastic sealing rings are able to be respectively fixed on the both upper and lower surface of the outer large annulation by an adhesive agent. Instead of the semicircular shaped sealing rings, a pair of elastic O-rings are positioned on the upper and lower surface of the outer large annulation or the both surfaces of the large diameter annular element 130a, as illustrated in FIG. 5. The outer annulation is able to be covered by an elastic material to obtain the same sealing effects instead of the sealing ring. That is, the both surfaces of the large diameter annular element of the spring member are able to be coated with the elastic materials.
  • valve seat 60 is positioned within the hole of the inner sealing ring element 130d which pushes the movable iron core 90.
  • the lower end of the operative member 160 is contacted with the projection 130c of the flat spring member 130.
  • the numeral 170 shows a nut which secures the flat spring member 130 and the elastic sealing members 140 and 150 in the valve chamber, and functions when the electromagnetic element 20 is fixed to the valve body by a threaded screw which is not shown in the drawings.
  • This nut is able to be provided with the electromagnetic element as one body.
  • the operative member is vertically provided inside of the housing.
  • the operative member 190 for the present invention is able to be provided on the outside of a wall of the valve apparatus.
  • a slot is provided in the side wall of the apparatus at in approximately horizontally extended part from the valve seat.
  • An inner projection of the operative member is slidably inserted through the slot and the outer end of the projection of the flat spring member is fixed in the inner projection of the operative member.
  • FIG. 4 the condition of lifting up the movable iron core of the present embodiment shown in FIG. 1 is shown. From this condition, when the force on the operative member 160 is removed, the flat spring member 130 returns by the resilient force thereof to the condition shown in FIG. 1, and then the movable iron core 90 also returns by the force of the spring 120, as disclosed above, the present invention has the most important features on the flat spring member 130.
  • the base of the embodiment 130' of the outer annular element of the spring member connecting to the projection thereof is changed shape to straight, as shown by a numeral 180 in FIG. 6.
  • the straightly shaped base has more effects on the strong force of restitution and on the long life.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetically Actuated Valves (AREA)
US06/179,642 1979-08-31 1980-08-20 Electromagnetic valve apparatus with a hand-operated transfer device Expired - Lifetime US4344603A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1979121286U JPS608223Y2 (ja) 1979-08-31 1979-08-31 電磁弁の手動切換装置
JP54-121286[U] 1979-08-31

Publications (1)

Publication Number Publication Date
US4344603A true US4344603A (en) 1982-08-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
US06/179,642 Expired - Lifetime US4344603A (en) 1979-08-31 1980-08-20 Electromagnetic valve apparatus with a hand-operated transfer device

Country Status (3)

Country Link
US (1) US4344603A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS608223Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3032479C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0095331A1 (en) * 1982-05-21 1983-11-30 Humphrey Products Company Plunger-type valve
US4620567A (en) * 1983-08-29 1986-11-04 American Standard Inc. Solenoid-operated valve
EP0206495A1 (en) * 1985-05-18 1986-12-30 LUCAS INDUSTRIES public limited company Improvements in solenoid-operated fluid flow control valve means
US5799696A (en) * 1995-10-18 1998-09-01 Parker-Hannifin Corporation Solenoid actuated toggle valve
US6394413B2 (en) * 1999-05-26 2002-05-28 The Toro Company Self cleaning irrigation valve with offset manual on actuator, body/bonnet alignment, and captured screws
US6527248B1 (en) * 1999-11-25 2003-03-04 Parker Hannifin Rak Sa Solenoid valve with a manual control pushbutton
US20030226993A1 (en) * 2002-06-11 2003-12-11 Smc Corporation Solenoid valve having manually-operated device
US20120223264A1 (en) * 2011-03-03 2012-09-06 Buerkert Werke Gmbh Solenoid Valve
US20120223263A1 (en) * 2011-03-03 2012-09-06 Buerkert Werke Gmbh Solenoid Valve
US9343716B2 (en) 2011-12-29 2016-05-17 Apple Inc. Flexible battery pack
WO2016128007A1 (de) * 2015-02-14 2016-08-18 Festo Ag & Co. Kg Ventileinrichtung
US9455582B2 (en) 2014-03-07 2016-09-27 Apple Inc. Electronic device and charging device for electronic device
US20160298782A1 (en) * 2015-04-10 2016-10-13 Buerkert Werke Gmbh Valve and valve assembly
US9479007B1 (en) * 2014-02-21 2016-10-25 Apple Inc. Induction charging system
US9593969B2 (en) 2013-12-27 2017-03-14 Apple Inc. Concealed electrical connectors
US9812680B2 (en) 2012-08-30 2017-11-07 Apple Inc. Low Z-fold battery seal
US20170370497A1 (en) * 2016-06-23 2017-12-28 Goodrich Aerospace Services Private Limited Valve assembly having a manual override unit
US9917335B2 (en) 2014-08-28 2018-03-13 Apple Inc. Methods for determining and controlling battery expansion
US20180306342A1 (en) * 2017-04-19 2018-10-25 Fisher Controls International Llc Electro-pneumatic converters and related methods
US10629886B2 (en) 2014-03-06 2020-04-21 Apple Inc. Battery pack system
US10637017B2 (en) 2016-09-23 2020-04-28 Apple Inc. Flexible battery structure
US11674611B2 (en) 2021-04-22 2023-06-13 Fisher Controls International Llc Wear-resistant electro-pneumatic converters
US12075904B2 (en) 2019-04-17 2024-09-03 Apple Inc. Battery connection system for a wirelessly locatable tag

Families Citing this family (10)

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Publication number Priority date Publication date Assignee Title
DE3109560A1 (de) * 1981-03-13 1982-09-30 Robert Bosch Gmbh, 7000 Stuttgart Kraftstoffeinspritzanlage
KR850003241Y1 (ko) * 1982-12-30 1985-12-28 구로다 세이꼬오 가부시끼 가이샤 전자밸브(電磁 Valve)
JPS60179105A (ja) * 1984-02-27 1985-09-13 Kyoji Ito 濾板式濾過機における濾板開板用爪装置の爪作動方法
JPS60140604U (ja) * 1984-02-27 1985-09-18 伊藤　恭司 濾過機における濾板の開板爪装置
JPS61263612A (ja) * 1985-05-16 1986-11-21 Kenji Umetsu フイルタ−プレスにおける濾過板移送装置
DE29507380U1 (de) * 1995-05-03 1995-08-24 Bürkert Werke GmbH & Co., 74653 Ingelfingen Fluidisches Steuerelement
DE50008907D1 (de) 2000-05-25 2005-01-13 Festo Ag & Co Ventileinrichtung
DE10355627A1 (de) * 2003-11-28 2005-06-23 Nass Magnet Gmbh Magnetventil
JP6531126B2 (ja) * 2016-03-01 2019-06-12 Ckd株式会社 電磁弁
CN111720565A (zh) * 2019-03-19 2020-09-29 浙江盾安禾田金属有限公司 电磁阀

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US2155358A (en) * 1936-01-08 1939-04-18 Honeywell Regulator Co Fluid flow regulator
US3351093A (en) * 1963-12-27 1967-11-07 White Sales Corp Graham Manually operable solenoid valve
DE2158248A1 (de) 1971-11-24 1973-05-30 Beukert Elektro Christian Mehrwegemagnetventil mit handbetaetigung

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Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
US2155358A (en) * 1936-01-08 1939-04-18 Honeywell Regulator Co Fluid flow regulator
US3351093A (en) * 1963-12-27 1967-11-07 White Sales Corp Graham Manually operable solenoid valve
DE2158248A1 (de) 1971-11-24 1973-05-30 Beukert Elektro Christian Mehrwegemagnetventil mit handbetaetigung

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0095331A1 (en) * 1982-05-21 1983-11-30 Humphrey Products Company Plunger-type valve
US4501299A (en) * 1982-05-21 1985-02-26 Humphrey Products Company Plunger-type valve
US4620567A (en) * 1983-08-29 1986-11-04 American Standard Inc. Solenoid-operated valve
EP0206495A1 (en) * 1985-05-18 1986-12-30 LUCAS INDUSTRIES public limited company Improvements in solenoid-operated fluid flow control valve means
US5799696A (en) * 1995-10-18 1998-09-01 Parker-Hannifin Corporation Solenoid actuated toggle valve
US6394413B2 (en) * 1999-05-26 2002-05-28 The Toro Company Self cleaning irrigation valve with offset manual on actuator, body/bonnet alignment, and captured screws
US6527248B1 (en) * 1999-11-25 2003-03-04 Parker Hannifin Rak Sa Solenoid valve with a manual control pushbutton
US20030226993A1 (en) * 2002-06-11 2003-12-11 Smc Corporation Solenoid valve having manually-operated device
US6959910B2 (en) 2002-06-11 2005-11-01 Smc Corporation Solenoid valve having manually-operated device
US20120223264A1 (en) * 2011-03-03 2012-09-06 Buerkert Werke Gmbh Solenoid Valve
US20120223263A1 (en) * 2011-03-03 2012-09-06 Buerkert Werke Gmbh Solenoid Valve
US8757207B2 (en) * 2011-03-03 2014-06-24 Buerkert Werke Gmbh Solenoid valve
US8777180B2 (en) * 2011-03-03 2014-07-15 Buerkert Werke Gmbh Solenoid valve
US9343716B2 (en) 2011-12-29 2016-05-17 Apple Inc. Flexible battery pack
US9812680B2 (en) 2012-08-30 2017-11-07 Apple Inc. Low Z-fold battery seal
US9593969B2 (en) 2013-12-27 2017-03-14 Apple Inc. Concealed electrical connectors
US9479007B1 (en) * 2014-02-21 2016-10-25 Apple Inc. Induction charging system
US10629886B2 (en) 2014-03-06 2020-04-21 Apple Inc. Battery pack system
US10170918B2 (en) 2014-03-07 2019-01-01 Apple Inc. Electronic device wireless charging system
US9455582B2 (en) 2014-03-07 2016-09-27 Apple Inc. Electronic device and charging device for electronic device
US9837835B2 (en) 2014-03-07 2017-12-05 Apple Inc. Electronic device charging system
US11411412B2 (en) 2014-03-07 2022-08-09 Apple Inc. Battery charging control base on recurring interactions with an electronic device
US10840715B2 (en) 2014-03-07 2020-11-17 Apple Inc. Wireless charging control based on electronic device events
US10523021B2 (en) 2014-03-07 2019-12-31 Apple Inc. Wireless charging control based on electronic device events
US11539086B2 (en) 2014-08-28 2022-12-27 Apple Inc. Methods for determining and controlling battery expansion
US9917335B2 (en) 2014-08-28 2018-03-13 Apple Inc. Methods for determining and controlling battery expansion
US10847846B2 (en) 2014-08-28 2020-11-24 Apple Inc. Methods for determining and controlling battery expansion
CN107208824B (zh) * 2015-02-14 2019-07-30 费斯托股份有限两合公司 阀装置
CN107208824A (zh) * 2015-02-14 2017-09-26 费斯托股份有限两合公司 阀装置
WO2016128007A1 (de) * 2015-02-14 2016-08-18 Festo Ag & Co. Kg Ventileinrichtung
US10054242B2 (en) * 2015-04-10 2018-08-21 Buerkert Werke Gmbh Valve and valve assembly
US20160298782A1 (en) * 2015-04-10 2016-10-13 Buerkert Werke Gmbh Valve and valve assembly
US20170370497A1 (en) * 2016-06-23 2017-12-28 Goodrich Aerospace Services Private Limited Valve assembly having a manual override unit
US10240684B2 (en) * 2016-06-23 2019-03-26 Hamilton Sundstrand Corporation Valve assembly having a manual override unit
US10637017B2 (en) 2016-09-23 2020-04-28 Apple Inc. Flexible battery structure
US20180306342A1 (en) * 2017-04-19 2018-10-25 Fisher Controls International Llc Electro-pneumatic converters and related methods
US11073221B2 (en) * 2017-04-19 2021-07-27 Fisher Controls International Llc Electro-pneumatic converters and related methods
CN108730599B (zh) * 2017-04-19 2022-04-12 费希尔控制产品国际有限公司 电动-气动转换器及相关方法
CN108730599A (zh) * 2017-04-19 2018-11-02 费希尔控制产品国际有限公司 电动-气动转换器及相关方法
US10422438B2 (en) * 2017-04-19 2019-09-24 Fisher Controls International Llc Electro-pneumatic converters and related methods
US12075904B2 (en) 2019-04-17 2024-09-03 Apple Inc. Battery connection system for a wirelessly locatable tag
US11674611B2 (en) 2021-04-22 2023-06-13 Fisher Controls International Llc Wear-resistant electro-pneumatic converters

Also Published As

Publication number Publication date
DE3032479C2 (de) 1982-06-16
DE3032479A1 (de) 1981-03-12
JPS5637769U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1981-04-10
JPS608223Y2 (ja) 1985-03-22

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